Bobbin winder



March 27, 1928.

F. E. HARDING BOBBIN WINDEP- Filed May 17, 1927 v UNITEDSTA 40 end to a fixedpart of the machine is brackets 18 cooperates with bins, havebeen Patented d Mar. 27, 1928.

PATENT OFFICE.

FRANK E. HARDING, F LAWRENCE, MASSACHUSETTS, ASSIGNOR TO ARLINGTON MILLS, OF LAWRENCE, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

- i .BOBBVIN wINnER. I

Application filed May 17,

The present invention relates to the improvement in bobbin Winders. I

The bobbin winder known as the'Davis and Furber bobbin winding machine as heretofore Constructed. formed a bunch on the'bobbin at or near the butt consisting of about thirty yards of filling. With improvements that have been made in the filling feeler mechanismuof the loom it has been found unnecessary toprovide as large a bunch on the bobbin asfhas heretofore been thepractice. The object of the present invention isto modify the construction of a bobbin winding machine and more especially the bobbin winding machine of the Davis and Furber type to form amuch smaller bunch on the bobbin so as to save the waste incident to the use of the larger bunch. The present invention consists in the bobbin winding machine hereinafter described and particularly defined in the claims.

In the accompanying drawings illustrating the preferred form of the invention Fig. 1 is an end view of the Davis and Furber winding machine showing the parts of the machine together with the additions thereto which form the subject of the present invention; Fig.2 is a detail view hereinafter referred to; and Fig. 3 shows thecompleted bunch on the bobbin. 1

the bobbins 14 are placed. A faller wire 15 extending the length of the machine and supported on arms 16 is carried by the shaft v 17 mounted in the brackets 18 secured to the its lower attached at its upper end to the arm 21 secured. to-the shaft 17 and normally tends to turn the faller wire shaft in the direction to liftthe faller wire. A latch 22 pivoted at 23 on the a projection 24 on one or more of the arms 16 in. the usual way. A-hand lever 25 loosely pivotedon the faller wire shaft 17 is'provide'd for depressing the faller wire after a set of bobfilled. raised by a rod 26. which passes through a block 27 towhich .it is secured by the set nuts 28. The block 27 is provided with an car 30 through a hole in whichthe pin 31 frames 10. A spring 20 secured at 55 passes. The pin 31 is also received in the The faller wire is p for movement 1927. Serial No. 192,063.

slot 32'0f the arm 33 secured on the "faller wire shaft 17and from this arm there upwardly projects the hand lever 34. The lower end of the rod 26 is screwed into a block 35 to which it is secured by the set nut 36. In a suitable position on the rod 26 is carried'the stop collar 37 secured in place by the setscrew 38. This stop collar is adapted to strike a stop lever (not. shown) when it shall have risen to such a point as to complete the winding of the bobbin. The block 35 is pivotally connected to the traverselever 40 bymeans of the pin 41. This cam lever 40 is pivotally mounted on the stationary part of the frame at 42. The'rear end 43 of this lever 40' is operated by means of the traverse cam 44 mounted on a shaft 45 supported in hearings in thesli'de 73 which is supported to slide vertically on theframe of the machine. 'The shaft 45 carries the worm wheel 46 which meshes with the worm 47 mounted on the shaft 48 supported in a worm carrier 50. The worm shaft 48. is provided with a hand wheel 51 by which it may be turned by the operative. The worm shaft 48 also carries the bevelpinion 52 which meshes with a bevel gear 53 loosely mounted on the shaft 54. A ratchet wheel 55 is secured to the bevel gear '53 and a pawl 56 is mountedon the pawl arm 57 also pivotally mounted on the shaft 54.

cured to or formed integral. with the disk63 is the pick cam 65 Which engages the cam roll 66 supported on the pick lever 67 which ispivoted at68 on the stationary part of the machine. This lever 67 is slotted at 70 in which isreceived a pin from which a link 71 (not fully shown) extends downwardly to a pivot 72. This link 71 has a large opening in its center tosurround with freedom 45. The upper end of the'link'71 may be se- 'curedin different positions in the slot 7 0 so as to vary the amplitude of the movement imparted to the slide 73 in which the pivot one arm of the bell crank lever It is tobe noted that the worm wheel 46, the worm 47, the worm shaft with respect thereto the shaft 72 is secured. Rotations of the pick cam 65 cause the small rising and falling movements of the transverse lever 40 to produce the conical" windings on the bobbin. The 08.111 44 gradually" advances the position of the taller wire from the bottom to the top of the bobbin. The slide 73 carries a secondary slide 74 which is provided. with the nub 75 which rests upon the cam 44 and transmits the motionstrom the cam to the traverse lever 40.

. The mechanism above described is that t the Davis, and; Furber winder and its mode of operation is the sameasthe mode of op- I eration of that machine. 'The present invention contemplates the employment of a plate. 7.6011 the nub 75 which is secured to the nub and projects tothe rear beyond the nub to. enter.- the notch 77 in the lever 78 pivoted. on the pin 80 carried by the bracket 81 secured to the frame of. the machine. A spring 89. isprovided normally tending to turn the lever 78 in the direction to cause the notch. 77 to engage the plate 76. A spring 83 hung on the pin 84 at its upper end is attached to an eye 85 at its lower end which is, secured to the secondary slide 74 which carries the nub 75. Upon the end of the shaft or-stud 8O- is mounted, the arm 86 which is provided at its end with a pin 87 which projects inwardly and forms a stopagainst which the lever 78 takes when it occupies its extreme left hand position as viewed in Fig. 1. The arm. 86' is secured to the pin 80 by means of the set screw 88 so that it may be adjusted to correct position.

The operation of the machine provided with this new small bunch building device is somewhat different fromthe operation without. the device. Consequently, it will be convenient to describe the complete operation including the new bunch contrivance. With. the parts in the positions" which they occupy in Fig. 1, the inachineis assumed to be in; the condition it is in after dofiing and after having'been started up with the filling running over the taller wire to the: bobbin and in the act of building the small bunch. At this time, the traverse lever 40 rests upon the plate 76 which in turn is supported by the notch lever 78. As the operation continues, the gear 46 turns in the direction of the arrow 90 and carries with it the cam 44 which presently strikes the lower end of the notch lever and moves the lever from the position. shown in Fig. 1 to the position shown in Fig. 2, whereupon the heavy spring 2.0 pulls the rear end- 43 ot the traverse lever downward andmoves the secondary; slide down: until* thenub 7 5 rests upon the cam 44. Thereafter the regular. building of the cop. continues, the tallerrising' and fllllllQQ-WlI-Tg; to the action: of the pick cam and gradually occupying a higher and tion. shown in Fig. 1'.

bobbin.

higher position until the bobbin iscompleted, at which time the cam 44 will have turned to a position 180 from its position shown in Fig. 1, whereupon the-stop collar 37 will strike the stop lever' (not shown) and stop the winder. The operative will then take the hand lever 25 and swing it upward in the direction of the arrow 91, bringing a part of the lever against the car 92 secured to the taller wire shaft .17 and thereby swinging the shaft and the taller wire down until the hook 22 engages the projection 24 thereby holding the taller. wire below the bobbin. Then the operative will cause the machine to. rotate the spindles a few revolutions so as to secure the ends of the filling 93. on the spindles 13 below the bobbins. Either before or after dofiing, but preferably before dofling, the operative will then turn the holding latch 95 downward, thereby permitting the worm 47 to be disengaged from the worm. wheel 46. He will then fit his hand crank on the squared end of the shaft 45 and turn such shaft backwardly, that is, in. the direction opposite to the arrow. 90. It will be remembered that at this time the traverse lever is in raised position with its rear end 43 somewhat higher than the posi- I v As-the cam 44 is turned backwardly it will engage the curved lower end of the notch lever 78 and force it rearwardly, that. is, move it to the right as the cam passes the notch lever. lVhen the cam 44 shall have been turned backwardly to the position shown in Fig; 1, the notch lever- 78 will rest against the plate 7.6, but the latter, occupying aposition in contact with the end 43 of the traverse lever 40, will be located above the notch 77 of the notch lever, being lifted to this position by the spring. 88 as soonas the taller wire" has been depressed to the position below the The operative will then turn the latch 95 and re-engage the worm 47 with the worm. wheel 46. The operative will then dolf the bobbins and replace them with empty bobbins after which he will push upon the hai id'leve r 34 to move it in the directtion of the arrow 94 sufficiently to release the book 22 after which the -taller shaft will be pern'ii'tte'd to turn under the influence of" the spring 20 to lift the taller wire to the position shown in Fig. 1, thereby depressing theinner end 43 of the traverse lever and causing it to depress the secondary slide 74 to; a position opposite the notch 77 in the notch lever. At this time it wilt be rememberedthat the cam 44' has been turned backwardly to the position shown in Fig. 1 and the notch lever 78supports the secondary slide 74 in elevated position as shown in Fig.1.. The winder will then be started up again and another set of bobbins will be wound with filling as before.

lllt) The winder described operates first, during.

the time the taller wire is held stationary by the engagement of the plate 7 6 with the notch 7 7 in the notch lever to cause a small bunch as shown in Fig. 3 to be formed on the bobbin. The comparatively short time required" to move the traverse cam 4413mm the position shown in Fig. 1 to the position shown in Fig. 2 when it will have released the notch lever from engagement with the plate 7 6 will permit in a well adjusted position of the parts the formation of a bunch having about five yards of filling. After this bunch is formed the conical pick layers will be laid upon the bobbin one after angther from the bunch to the tip of the bob- Having thus described the is claimed is:

1. A bobbin winder having, in combination, bobbin spindles, a faller wire, a traverse cam, a pick cam, connections between the faller wire and the two cams to traverse the taller wire over the bobbin, a notch member provided with a notch, a part of said connections having a portion to enter said notch, said notch member acting to prevent the transmission of motion from the cams to the taller wire, and said notch member being so located as to be struck and moved by the traverse cam to cause the connections to be actuated by the cams.

2. Traverse mechanism for bobbin winding machines having, in combination, a traverse'cam, a slide upon which it is mounted, a secondary slide carried by the first slide and having a nub normally adapted to rest upon and to be moved by the traverse cam,

invention, what said nub being provided with a projection, a notch member having a notch to receive the projection and a portion adapted to be struck by the traverse cam to move the notch lever to releasethe nub.

3. Traverse mechanism for bobbin winding machines comprising a main slide, a traverse cam carried by the main slide, a pick cam and connections between it and the main slide for reciprocating the'latter, a secondary slide carried by the main slide, a nub on the secondary slide provided with a projection, a spring normally tending to lift the secondary slide a notch lever having a notch adapted to receive the projection on the secondary slide, a spring tending to hold the notch lever in the position to cause the notch to engage the projection, said notch lever having a part adapted to be engaged by the traverse cam to move the notch lever to release the projection.

4. Traverse mechanism for bobbin winding machines comprising a main slide, a traverse cam carried thereby, a traverse lever adapted to be driven therefrom, a filling guide and connections between the filling guide and the traverse lever, a secondary slide carrying a plate interposed between thetraverse lever and the traverse cam, a pivoted notch lever for engaging the plate, a spring normally tending to turn the notch lever in the direction to cause the notch to engage the plate, and a spring connected with the secondary slide normally holding the latter against the traverse lever.

In testimony whereof I have signed my name to this specification.

FRANK E. HARDING. 

